using System;
/*
 * $Id: CounterFactory.java 5829 2013-05-31 09:01:34Z blowagie $
 *
 * This file is part of the iText (R) project.
 * 	
 * BVBA Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by
 * the Free Software Foundation with the addition of the following permission
 * added to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED
 * WORK IN WHICH THE COPYRIGHT IS OWNED BY ITEXT GROUP, ITEXT GROUP DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details. You should have received a copy of the GNU Affero General Public
 * License along with this program; if not, see http://www.gnu.org/licenses or
 * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License, a
 * covered work must retain the producer line in every PDF that is created or
 * manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing a
 * commercial license. Buying such a license is mandatory as soon as you develop
 * commercial activities involving the iText software without disclosing the
 * source code of your own applications. These activities include: offering paid
 * services to customers as an ASP, serving PDFs on the fly in a web
 * application, shipping iText with a closed source product.
 *
 * For more information, please contact iText Software Corp. at this address:
 * sales@itextpdf.com
 */

namespace iTextSharp.text.log
{
    /**
     * Factory that creates a counter for every reader or writer class.
     * You can implement your own counter and declare it like this:
     * <code>CounterFactory.getInstance().setCounter(new SysoCounter());</code>
     * SysoCounter is just an example of a Counter implementation.
     * It writes info about files being read and written to the System.out.
     * 
     * This functionality can be used to create metrics in a SaaS context.
     */
    public class CounterFactory {

	    /** The singleton instance. */
	    private static CounterFactory myself;

	    static CounterFactory() {
		    myself = new CounterFactory();
	    }
	
	    /** The current counter implementation. */
	    private ICounter counter = new NoOpCounter();

	    /** The empty constructor. */
	    private CounterFactory() {}
	
	    /** Returns the singleton instance of the factory. */
	    public static CounterFactory getInstance() {
		    return myself;
	    }
	
	    /** Returns a counter factory. */
	    public static ICounter GetCounter(Type klass) {
		    return myself.counter.GetCounter(klass);
	    }
	
	    /**
	     * Getter for the counter.
	     */
	    virtual public ICounter GetCounter() {
		    return counter;
	    }
	
	    /**
	     * Setter for the counter.
	     */
	    virtual public void SetCounter(ICounter counter) {
		    this.counter = counter;
	    }
    }
}
